Can I buy a fob online and have you program it?

Sometimes — it depends on the part. Some aftermarket and second-hand fobs pair fine; others are locked to their original vehicle or simply wrong for yours. Call with what you bought (or better, before you buy) and we will tell you straight whether it can be paired, so the bargain does not cost you twice.

Does a new fob mean my old lost one still works?

Not if we do the job properly — pairing the new fob is paired with erasing the lost one, so the old fob stops locking, unlocking or starting anything from that session on.

04 / 07 · Automotive service

Key Fob Replacement

Replacing a lost, broken or water-damaged remote and pairing it to your vehicle.

Open 24/7Mobile — we come to you

Call (226) 333-2210 Read what it involves

Category: Automotive
Availability: 24/7
Coverage: 10 GTA cities
The visit: 4 steps

On this page

A fob does two jobs — remote locking, and on most vehicles the immobilizer credential that lets the engine start. Replacement means supplying the fob and programming it, because an unprogrammed fob is an inert piece of plastic. Sometimes the fob is fine and only the battery or a cracked case has failed, and we will tell you when that is what we find.

Diagnosis before replacement, every time
A fob that stopped working has four suspects: a flat battery, a cracked case with a healthy board inside, a fob that lost its pairing, or a fob that is genuinely dead. Three of the four do not require a new fob, which is why the visit starts with testing rather than selling. A battery and a case are trivial fixes; a re-pair is a programming job on the fob you already own. Only when the electronics have actually failed — water is the usual culprit — does replacement enter the conversation, and you will know why.
Replacement means supplied, programmed, and proven
An unprogrammed fob is an inert piece of plastic, whatever the listing that sold it promised. Replacement here means the correct fob for your vehicle supplied and paired to it at your location — remote functions and, on most vehicles, the immobiliser credential that lets the engine start. Lost fobs are erased in the same session, so the missing one goes dead the moment yours is paired. Everything is tested before we leave: lock, unlock, trunk, panic, start.

Step 1: Test what you have
Battery, case, board and pairing checked in that order — because the cheapest fix that works is the right fix.
Step 2: Supply the correct fob
The right unit for your vehicle's year and system, brought to you — not a maybe-compatible listing you have to gamble on.
Step 3: Pair at the vehicle
The fob programmed to your vehicle, and any lost fobs erased in the same session so they stop working immediately.
Step 4: Prove every function
Lock, unlock, trunk, remote start where fitted, and the engine started — before the visit ends, not after you drive off.

We check battery and case first, because the cheapest fix is the one that does not involve a new fob
Supplied and programmed in the same visit, at your location
Lost fobs erased from the vehicle so they stop working the moment yours is paired

Not necessarily — sometimes only the battery or its contacts gave up, and boards do survive. We test before condemning it. If the electronics are gone, replacement and pairing happen in the same visit.